Mop making machine



Jan. 14, 1941. E, A, MASON 2,228,606

MOP MAKING MACHINE Filed Aug. 7, 1956 a sheetsfsheet 1 Jan. 14, 1941.E.. A. MASQN I 2,228,606

MoP MAKING MACHINE Jan. 14, 1941.2 E, A MASON 2,228,606

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MOP MAKING MACHINE Filed Aug. 7, 1936 8 Sheets=Sheet 4 I l 3mm@ ua-JET/ZwaarLZ/Vans'or(7 Www/u Jan. 1.4, 1941. E A MASON 2,228,606

Mor MAKING MACHINE Filed Aug. 7, 1956 8 Sheets-Sheet 5 E. A. MASON MOPMAKING MACHINE Filed Aug. '7, 193s Jan. 14, 1941.

8 Sheets-Sheet 6 Ebner Mason? NWN Jan. 14, E A. MASON MOP MAKING MACHINEFiled Aug. 7, 1936 8 Sheets-Sheet 7 Jan. 14, 1941. E. A. MASON MOPMAKING MACHINE Filed Aug. 7, 1936 8 Sheets-Sheet 8 @lef /j/m er ./ZMQSO@@vrouw/11 Patented Jan. 14, 1941 PATENT OFFICE MOP MAKING MACHINE ElmerA. Mason, Fall River, Mass., assigner of three-fourths to Michael E.ORourke, Francis L. Daylor, and William F. ORegan, all of Fall River,Mass.

Application August 7, 1936, Serial No. 94,860

17 Claims.

This invention relates to mop swab making machines and more particularlyto a machine for making a ravel-proof mop swab.

An object of this invention is to provide a machine which will produce amop swab of ravelproof construction and which will produce apredetermined size of swab automatically.

Another object of this invention is to provide a machine which willproduce a ravel-proof mop swab with twisted yarn and which is soconstructed that the length of the swab can be varied at will inaddition to the variance in the quantity of strands used in the makingof a single swab.

A further object of this invention is to provide a machine of thischaracter which will automatically stop when the supply yarn breaks inaddition to automatically stopping when a predetermined quantity of yarnstrands have been accumulated on the carrier scale.

With the foregoing and other objects in view, the invention will be morefully described hereinafter, and will be more particularly pointed outin the claims appended hereto.

In the drawings, wherein like symbols refer to like or correspondingparts throughout the several views,

Figure l is a detail front elevation of a machine constructed accordingto an embodiment of this invention.

Figure 2 is a vertical section taken on the line 2--2 of Figure l.

Figure 3 is a horizontal section taken on the line 3-3 of Figure 2.

Figure 4 is a sectional view taken on the line 4-4 of Figure 3.

Figure 5 is a fragmentary sectional view taken on the line 5-5 of Figure4.

Figure 6 is a fragmentary sectional view partly in detail of the yarnreleasing means for releasing the twisted strands for deposit onto thecarrier scale.

Figure 7 is a sectional view taken on the line 1 1 of Figure 2.

Figure 8 is a fragmentary top plan of the machine.

Figure 9 is an enlarged sectional view taken on the line 5 9 of Figurel.

Figure l() is a sectional view partly in detail 'reken on the lineill-lll of Figure 9.

Figure l1 is a perspective View partly broken away of the stop mechanismfor automatically stopping the machine when the yarn breaks and forstopping the machine when the desired quantity of material has beendeposited on the carrier scale.

Figure 12 is a front elevation partly in section of the stop mechanism.

Figure 13 is a fragmentary perspective View showing the stop leverscontacting with the carrier scale. 5

Figure 14 is a perspective view of the carrier scale together with thehooks for use in twisting the yarn and the means for removing thetwisted yarn from the hooks.

Figure l5 is a fragmentary side elevation of one l0 of the hooks in theact of contacting with the yarn carried by the needle.

Figure 16 is a fragmentary side elevation of the hook in its downwardmovement after receiving the yarn from the needle.

Referring to the drawings wherein like symbols designate correspondingpartsi throughout the several views, the numeral 2t designates generallya frame structure of suitable construction and the numeral 2| designatesa yarn of preferably 20 several strands which is` connected at one endto a supply spool. This yarn 2| is passed through the eye of ahorizontally slidable needle 22 which is slidable through a bearing 23carried by the frame 20. The end of the needle opposite from 25 the eyethereof is provided with a guide loop 24 in which an eccentricallymounted pin 25 engages. The pin 25 is mounted on a disk or wheel 26secured to a driven shaft 21 which is mounted on the upper portion ofthe frame 20.

The shaft 21 has a bevelled gear 28 secured thereto which meshes with abevelled gear 29 mounted on the upper end of a vertical shaft 35. Abevelled gear 3l is mounted on the lower end of the shaft 3D and mesheswith a bevelled gear 35 32 which is mounted on a driven shaft 33. Theshaft 33 is connected to a drive shaft 34 by a gear train 35. The driveshaft 34 has a pulley 36 fixed thereto and also has a loose pulley 31mounted thereon. A driving belt 38 engages the pulley 36 40 and isadapted to be connected to a suitable source of power supply.

A hook 39 is secured to the upper end of a rod 4l) which is rotatable ina bearing 4 I. The bearing 4| is provided with guide arms 42 whichengage 45 vertically disposed parallel guide rods 43. The upper ends ofthe guide rods 43 are secured in a bracket 44 carried by the upperportion of the frame 2li. The lower ends of the guide rods 43 aresecured to a block 45 carried by a bracket 45 50 secured to a suitableportion of the frame 20. The hook rod is provided with a longitudinallyextending keyway 41 and a key 48 carried by a sleeve 49 slidably engagesin the keyway 41. A

` sleeve 58 loosely engages about the inner sleeve 49 55 and is providedwith an annular flange 5| at its upper end, which engages the upper endof the bushing or bearing 45. A gear 52 is fixed to the lower end of theouter sleeve 50 and meshes with a gear 53 mounted on a shaft 54. Theshaft 54 is rotatably carried by the bracket 46 and is provided at itslower` end with a beveiled gear 55 which meshes with a bevelled gear 56mounted on the drive shaft 34.

A clutch collar 5i is mounted about the sleeve :i9 being held againstrotation by mea-ns of a key This clutch collar is adapted to havevertical sliding movement with respect to the sleeve 49 under the actionof a bell crank lever 59 carried by a bracket 69. The upper end or faceof the annular' flange 5| is provided with a clutch member 6| and thelower face of the slidable clutch collar 51 has a clutch member 62secured thereto for engagement with the clutch member 6| when the bellcrank lever 59 is rocked to a clutching position. The gears 52 and 53will rotate continuously but the sleeve 49 and the hook rod 40 will onlyrotate when the clutch member 62 engages the clutch member 6|.

The bell crank 59 is rocked under the action of a cam 63 'which ismounted on a shaft 64. This cam 63 has a cam groove 65 in one facethereof and a roller 95 engages in this cam groove 65. The roller 66 iscarried by a forked member 61 and this forked member S1 is provided withbifurcated ends 63 which engage over the shaft 64. A rod 99 is securedat one end to the fork member 61 and this rod '39 slidably engages a bar10 which is connected to one arm of the bell crank 59 by a pivotalconnection 1|. A collar 12 is secured in adjusted position to theopposite end of the rod 69 and a second collar 13 is mounted on the rodand constitutes a tensioning means for a spring Tl which is mounted onthe rod 69 so that the bell crank 93 will be cushioned in its rockingmovement under the action of the cam 63.

The hook 39 and the rod 40 are moved up and down by means of a hookoperating lever 15 which is rockably mounted on a stationary rod orshaft 113 carried by the frame 20. One end of 'the lever has a forkedmember 11 provided 7th pins i9 engaginfr in a grooved collar 19, ich isfixed to the rod 40. Preferably, the lever 'i5 comprises an inner leverportion 80 and an cuter lever portion 8| which is slidable within theinner lever portion 00. A weight 82 is adjustably mounted on the lever 5and substantially balances this lever l5 on the shaft 16. The lever .75is provided with an elongated slot 83 at one side of the shaft 16 andthe upper end 84 of a lever operating rod 95 has a bolt 85 engaging inthe slot and this bolt 86 has a nut 81 threaded 'thereon so that the rod85 may be adjusted in the slot i3 in order to adjust the verticalmovement of the lever 15.

The lower end of the rod 85 has a forked member SS secured thereto whichis provided with a roller engaging a cam groove 90 of a cam member 3iwhich is mounted on the shaft 33. This cam 6| is so constructed orformed that upon rotation thereof the lever 15 will be rocked verticallyand at each end of travel of the lever 15 there will be a dwell period,as will be hereinafter described.

When the hook is in its uppermost position and is held in this positionby the dwell portion e cam i, the needle 22 will move horizontally eaththe hook 39 so that the yarn 2| will be passed beneath the hook 39. Theneedle 22 will move horizontally to a position beyond a yarn holding pin92 which is slidably mounted on bearings 93 and 94 carried by the frame20. The pin 92 has an upstanding arm 295 secured thereto which ismounted in the path of an eccentrically mounted pin 96 which is securedto a disk 91 mounted on a shaft 98. The shaft 96 has a spiral gear 99secured thereto which meshes with a spiral gear xed to the shaft 21.Downward movement of the lever 15 will cause the hook 39 to engage theyarn 2| and pull this yarn 2| downwardly in a double strand with theyarn 2| engaging over the projecting end of the pin 92 as shown moreparticularly in Figure G.

When the lever 15 reaches the lower end of its downward travel the cam`9| will hold the lever in its lowermost position by the dwell periodthereof and at this time, the cam 63 will effect operation of the bellcrank 53 so as to lower the clutch collar 51 to thereby bring the twoclutch members 6| and 52 into engagement with each other, in order toeffect rotation of the hook 33 and the rod 40. The shaft E4 is rotatedby means of a chain |0| which engages a sprocket |02 mounted on theshaft 33 and a sprocket |03 carried by the shaft 64. Idler sprockets |04and |05 engage the chain |9| between the sprockets |02 and |03 so as tokeep the chain |0| in taut condition.

The shaft 54 has a gear |06 secured to the upper end thereof and thisgear |06 meshes with a gear |01 secured to the sleeve 49. This gear |01has an interrupted part |08 so that at certain times the gear |06 mayrotate without rotation of the gear |01. A stop plate |09 is secured tothe gear |01 and a pin ||0 is carried by the plate |09 on the upper sidethereof. A hook positioning lever l is mounted on a shaft |42 carried bya bracket ||3 which is xed to one of the rods 43. An arm |4 is carriedby the lever and has a spring secured thereto which maintains the leverI I in the path of the pin l0. Preferably, the plate |09 engages overthe upper' end of the sleeve 43 so that the upper end of the sleeve 49will project through the plate |09 and the lever is adapted to engagethe upper end of the sleeve 4,9 when the pin |0 is out of Contacttherewith. The opposite end of the spring ||5 is secured to a bracket||6 carried by the frame 20. When the rock lever 59 is moved to aninoperative position and the clutch member 62 is moved out of engagementwith the clutch member 6|, the rod 40 will continue to rotate throughthe action of the gears |06 and I6? until the gear |36 engages theinterrupted part |68 of the gear |01. At this time, the lever willengage the pin ||0 and thus return the gear |01 which is free of thegear |06 by reason of the interrupted portion |09, so that the hook 39will be turned to the proper position to receive the yarn when this hook39 is again raised to the position shown in Figures 2 and 14.

The gear |01 is also heid against rotation by means of a stop lever ||1which is mounted on one of the guide rods 49 and disposed in the path ofthe stop plate |69. The stop lever ||1 is rocked under the action of anoperating rod ||0 which is moved to an operative or inoperative positionby means of a cam ||9 mounted on the shaft 64.

After the twisting operation has been completed, the lever rises and atthis time, a yarn releasing member is swung into engagement with thetwisted yarn above the hook 39 by means of a rod 2| which is operated bymeans of a cam |22. The yarn releasing member |29 is constructed in theform of a hook which is mounted on a vertically disposed rod |23 andthis rod |23 is secured to a horizontally swingable lever |24. An arm orbracket |25 is secured to one of the guide rods 43 and this bracket |25supports the lever |24 in operative position so that the hook |20 willbe disposed in a position for engagement with the twisted yarn or strand2|.

At the time that the twisted strand is released from the hook 39 by thereleasing member |20, the pin 96 will engage the arm 95 and move the pin92 inwardly of the bearing .93 against the tension of the spring |26 sothat the strand will then drop onto a movable carriage and scalegenerally designated as |21. The carrier and automatic scale |21 has aslide |23 engaging a guide member |29 carried by the frame 20 and thisslide |28 has an upstanding pair of posts |30 provided with V-shapedupper ends in which trunnions |3| carried by the carrier |21 engage. Inthis manner, the carrier |21 is swingably mounted on the guide |28 andone end of the carrier |21 is provided with a platform |32 on whichsuitable weights or the like may be mounted so as to determine thequantity of yarn which is necessary to downwardly rock the opposite endof the carrier. The opposite or forward end of the carrier is providedwith a scale member |33 having upstanding end portions |34 to preventyarn from sliding off thereof and one side of this yarn receiver orscale |33 is provided with a clip |35 beneath which the free end of theyarn is disposed.

The carriage |21 is progressively moved forwardly after the deposit of atwisted strand of yarn upon the scale |33 by means of a rod |36 which issecured at one end to the carriage |21 as at |31, and the opposite endof the rod |36 is secured to a gear |38 which is mounted on a stationaryshaft |39 and a relatively small gear |40 mounted on a shaft |4| mesheswith this gear |38. The gear |40 is turned by means of a ratchet |42which is secured to the shaft |4| and a spring pressed pawl |43 carriedby a lever |44 is adapted to progressively rotate the gear |40 and thegear |38. The lever |44 has an elongated slot |45 at the end oppositefrom the pawl |43 and a rod |46 is adjustably mounted in the slot |45 bymeans of a nut |41 and a bolt |48. The other or lower end of the rod |46has a split ring |49 which engages a circular cam |50 secured to theshaft 33.

In order to provide a means whereby the machine may be stopped whenthescale |33 rocks downwardly or when the yarn 2| breaks, I haveprovided a pin |5| on one side of the carriage |21 adjacent the rearthereof and a lever |52 pivotally mounted on a bracket |53 has a shoe|52 which rests on this pin |5|. A second lever |54 is securedintermediate its ends to an arm |55 fixed to a shaft |56. The lever |54at one end bears against a top of the lever |52 and the opposite end ofthe lever |54 has a guide eye |51 through which the strand 2| passes.The lever |54 also has a pawl |58 which is adapted to engage a ratchet|59 mounted on the shaft 21. When the tension on the strand 2| isnormal, the strand 2| will pull the pawl |58 downwardly out ofengagement with the teeth of the ratchet |59. The shaft |56 is mountedon bearings |60 carried by the frame 20 and a second arm l6| is securedto the shaft |56 and has a rod |62 secured thereto. The lower end of therod |62 is secured as at |63 to a pawl |64 mounted on a bracket |65.This pawl |64 is adapted to engage a lug |66 carried by a belt shifterrod |61 having a fork |68 at one end thereof. The belt shifter rod |61may also be moved manually by means of a lever |69 which is pivoted at|10 to a bracket I1| and the lever |61 is connected by means of a link|12 to the shifter rod 61.

The yarn 2| passes over a pair of spaced apart guide members |13 and |14with the guide eye |51 engaging the yarn between and below the guidemembers |13 and |14. The shifter lever |69 is constantly urged forwardlyby means of a spring |15 which is secured at one end to the lever |69and at the other end to the frame 20.

A second hook 39 is disposed on the side of the scale |33 opposite fromthe hook 39 and is se-v cured to a rod 40'. This rod 40' is movedvertically by means of a lever 15' and the operating means for the lever15' and the twisting means for the hook 39 and the rod 40 are similar inevery detail to the lever operating means for the lever 15 and the rod40. Inasmuch as the operating means for the second hook 39' is similarto the operating means for the hook 39 and the same characters ofreference are applied to the operating means for the hook 39 as for thehook 39, a further description of this operating means is believedunnecessary.

In the use and operation of this machine, the yarn 2| which, in thepresent instance, is formed of two strands of material is taken from thesupply spool or spindle and then passed over thev guide member |13through the eye |51 and then over the guide |14. The strand is thenpassed through the eye of the needle 22; and clamped beneath the clip|35. The machine may be set in motion by moving the hand lever |69forwardly to shift the belt on the drive pulley 36 and at this time thepawl |64 will engage the lug |66 to hold the belt shifting member |61-|68 in operative position.

The hook 39 will engage the yarn 2| and the lever 15 will then swingdownwardly under the action of the cam 9| thus drawing the yarn 2|downwardly over the pin 92. When the lever 15 reaches its` lowermostposition, the cam 63 will effect rocking of the bell crank 59 so as tomove the clutch collar 51 downwardly and thus bring the clutch members6| and 62 into contact with each other. When the clutch members 6| and62 are in contacting relation, the gear 52 will l cause the rod 40 torotate and, at the same time, the gears |06 and |01 will rotate at thesame speed. The cam 63 will maintain the clutch collar 51 in a clutchingposition a sufficient length of time to twist the strand 2| for thedesired nurnber of turns and then the cam 63 will move the clutch collar51 into released position. Assuming that the gears |06 and |01 aremeshing with each other with the clutch collar 51 in released position,the rod 40 will be rotated for a partialv rotation until the gear |01turns to the point where the interrupted portion |08 is opposite theteeth of the gear |06. Simultaneously with the release of the clutchcollar 51, the cam ||9 will effect inward movement of the locking member||1 which will frictionally engage the locking plate |09. As soon as thegear |01 turns to the point where the interrupted portion |08 isopposite the teeth of the gear |06 the spring pressed lever l willengage the pin I0 on the plate |09, as shown in Figure 3, so as torotate the rod 40 to the position where the hook 39 will be in a `properposition to engage the yarn 2| when the hook 39 is again in itsuppermost position.

After the hook 39 has been turned tothe proper` receiving position, thecam |22 will sving the yarn releasing member |23? forwardly, as shown inFigure so as to bend the y rn in or er that when the hook is movedupwardly the loop of the yarn about the hook 33 will be pulled oil andthe twisted strand thus released from the hook 39. The same operationtakes place with the hook 53 with the exception that the hook 39 is inthe opposite position from the hook 39. In other words, when the hooi:is in the uppermost or receiving position, the hooi: S9 is in thelowermost position. shown in Figure 14. When the twisted strand has beenreleased from the hook 39, the pin S will engage the arm S5 so as tomove the pin S2 to a released position in order to deliver th vistedstrand to the scale |33. At this time, the carriage |21 is movedforwardly one degree by rotation or" the eccentric l which will rock thelever H11 and thus turn the gear Mil forwardly one division.

When the desired number of twisted strands have been laid on the scale|33 the weight of these strands will roel; the scale |23 downwardly andmovement in a downward direction of the scale |33 will raise the pin i5!which, in turn will rock the lever itil. and the lever |54 upwardly.Upward movement or the lever |54 will bring the lug E58 into engagementwith a tooth of the ratchet le'f and, at the same time, the arm |55which is 'lined to the lever lfl will rock the shaft |56 and release thepawl |511 from the lug |66 so that e spring i will move the belt shifter|S`||68 to carry the belt S from the driving pulley 35 to the idlerpulley 3l. In this manner, the machine is automatically stopped when thedesired quantity of yar has been accumulated on the scale |33. Theoperator or" the machine will then out off the yarn at the end of theaccumulated swab on the scale |33 and then clamp the free end of theyarn El on the clip |35. The scale |33 may then be raised and manuallyreturned whereupon the operator ay then move the lever |59 forwardly toshift the belt onto the driving pulley 3 and again set the mac ine intooperation.

In the event the yarn El breaks between the supply spool or spindle andthe needle 22, the tension on the lever i5@ at the eye |51 will bereleased and this lever |55; will then swing upwardly to bring the lug58 into engagement with the ratchet and thus through the shaft li andthe rod |62 the pawl |64 will be raised to permit the spring i5 to shiftthe belt shifter |6`|| 68 from the driving pulley 36 to the idler pulley31.

The machine hereinbefore described will automatically produce a mop swabof the desired size which may be sewed together, that is the severalstrands orming the swab may be wrapped with a si ip of material at thecenter and this material then secured to the strands by stitching or thelike. The mop swab produced by this: machine will be or the twistedstrand variety and each strand will be formed of four strands of yarnbut it will, of course, be understood that the size of the twistedstrands may be varied at will depending only upon the number of strands2| which are initially used from the supply means. This mop wih notravel in the use thereof due to the fact that each strand is formed oflooped material and the strand is endless and in this manner the swabwill not leave ravellings on the door during the use thereof as iscustomary with mop swobs formed of cut strands.

It is obvious that various changes and modifications may be made in thedetails of construction and design of the above specifically describedembodiment of this invention without departing from the spirit thereof,such changes and modifications being restricted only by the scope of thefollowing claims.

What is claimed is:

l. A mop swab machine comprising a twisting means, a carriage forreceiving the material from said twisting means, and means connected tosaid carriage and active when a predetermined quantity of material hasbeen deposited on said carriage for stopping said twisting means.

2. A mop swab machine comprising a twisting means, a carriage movablerelative to said twisting means, operating means ior said twistingmeans, and means connected to said carriage and said operating means fordisconnecting said operating means when a predetermined quantity ofmaterial has been deposited on said carriage.

3. A mop swab machine comprising a frame, a yarn twisting mei lber inthe frame, means for slidably mounting said member in the frame, meansfor moving said member in the frame, means at one end of the movement ofsaid member for delivering untwisted yarn to said member, means at theother end of the movement of the member for rotating the member wherebyto twist the yarn, means active after the yarn has been twisted forremoving the yarn from the hook, a combined carriage and scale in theframe, and means for delivering the twisted yarn to said carriage andscale.

4. A mop swab machine comprising a trame, a yarn twisting member in theframe, means for slidably mounting said member in the frame, a rocklever connected to said member, means for rocking said lever, means atone end of the movement of said member for delivering untwisted yarn tosaid member, means at the other end of the movement of the member forrotating the member whereby to twist the yarn, means active after theyarn has been twisted for removing the yarn from the hook, a combinedcarriage and scale in the frame, means for delivering the twisted yarnto said carriage and scale, and means for automatically stopping themachine when a predetermined quantity of twisted yarn has been deliveredto said carriage and scale.

5. A mop swab machine comprising a frame, a

yarn twisting member in the frame, cam operated means connected to saidmember for reciprocating said member in the frame, means at one end ofthe movement of the member for delivering untwisted yarn to the member,means at the other end of the movement of the member for rotating themember whereby to twist the yarn, and means active when the yarn hasbeen twisted to position said member in a yarn receiving position.

6. A mop swab machine comprising a frame, a yarn twisting hook in theframe, cam operated means connected to said hook for reciprocating saidhook in the frame, means at one end of the movement of the hook fordelivering untwisted yarn to the hook, means at the other end of themovement of the hook for rotating the hook whereby to twist the yarn,means active when the yarn has been twisted to position said hook in ayarn receiving position, and means active after the hook has beenreturned to a yarn receiving position for removing the yarn from thehook.

7. A mop swab machine comprising a frame, a pair of spaced apart yarntwisting hooks in the frame, cam operated means connected to said hookfor reciprocating said hooks in the frame, said hooks moving in oppositedirections to each other, means at one end of the movement of the hooksfor delivering untwisted yarn thereto, means at the other end of themovement of the hooks for rotating the hooks whereby to twist the yarn,a rock member disposed between the hooks and adapted to receive thetwisted yarn therefrom, and automatically operated stopping meansengaging said rock member for holding said rock member against rockingmovement until a predetermined quantity of yarn has been depositedthereupon.

8. A mop swab machine comprising a frame, a pair of spaced apart yarntwisting hooks in the frame, cam means connected to said hooks forreciprocating said hooks, means at one end of the movement of the hooksfor delivering untwisted yarn thereto, means at the other end of themovement of the hooks for rotating the hooks whereby to twist the yarn,operating means for said cam means and said rotating means, a rockmember disposed between the hooks and adapted to receive the twistedyarn therefrom, and adjustable means connected to said rock member andsaid operating means for disconnecting said operating means when apredetermined quantity of twisted yarn has been deposited on said rockmember.

9. A mop swab machine comprising a frame, a pair of spaced apart yarntwisting hooks in the frame, cam means connected to said hooks forreciprocating said hooks, means at one end of the movement of the hooksfor delivering untwisted yarn thereto, means at the other end of themovement of the hooks for rotating the hooks whereby to twist the yarn,a carriage slidably carried by the frame, a yarn receiving memberrockably carried by said carriage, means engaging said yarn receivingmember and connected to the operating means for the machine for stoppingthe operating means when a predetermined quantity of twisted yarn hasbeen deposited on said yarn receiving member, and means for moving saidcarriage forward one division when a twisted strand has been deliveredto the carriage.

10. A mop swab machine comprising a frame, a pair of spaced apart yarntwisting hooks in the frame, cam means connected to said hooks forreciprocating said hooks, means at one end of the movement of the hooksfor delivering untwisted yarn thereto, means at the other end of themovement of the hooks for rotating the hooks whereby to twist the yarn,operating means for said cam means and said rotating means, a carriageslidably carried by the frame, a yarn receiving member rockably carriedby said carriage, means engaging said yarn receiving member andconnected to said operating means for rendering said operating meansineifective when a predetermined quantity of twisted yarn has beendelivered to said yarn receiving member, means for successively movingthe carriage forward one division when a twisted strand has beendelivered to the yarn receiving member, and means for removing thetwisted yarn from the hooks.

11. A mop swab machine comprising a frame, a pair of spaced apartreciprocable yarn twisting hooks in the frame, means for reciprocatingsaid hooks, a yarn delivering member disposed at one end of the movementof the hooks for selectively delivering the yarn to a hook disposed inyarn receiving position, means at the other end of the movement of thehooks for rotating the hooks whereby to twist the yarn, clutch meansassociated with said rotating means, timed means connected to saidclutch means for operation thereof, means active upon release of saidclutch means for positioning said hooks in a yarn receiving position,and means operable after said hooks have been positioned in a yarnreceiving position to remove the twisted yarn therefrom.

12. A mop swab machine comprising a frame, a pair of spaced apartreciprocable yarn twisting hooks in the frame, means for reciprocatingsaid hooks, a yarn delivering member disposed at one end of the movementof the hooks for selectively delivering the yarn to a hook disposed.4 inyarn receiving position, means at the other end of the movement of thehooks for rotating the hooks whereby to twist the yarn, clutch meansassociated with said rotating means, timed means connected to saidclutch means for operation thereof, means active upon release of saidclutch means for positioning said hooks in a yarn receiving position,means operable after said hooks have been positioned in a yarn receivingposition to remove the twisted yarn therefrom, a yarn receiving memberdisposed between the hooks, and means active after the yarn has beendisengaged from the hooks for delivering the twisted yarn to saidreceiving member.

13. A mop swab machine comprising a pair of twisting members, meansselectively delivering yarn to said members, means for removing thetwisted yarn from said members when the yarn has been twisted to apredetermined degree, and means intermediate said members for supportingthe twisted yarn.

14. A mop swab machine comprising a reciprocable twisting member, meansfor delivering yarn to said member at the end of one stroke thereof,means at the end of the opposite stroke thereof for rotating saidmember, means active during the movement of said member on said onestroke for removing the twisted yarn therefrom, and means active priorto the operation of said latter means for positioning said hook in ayarn receiving position.

15. A mop swab machine comprising a strand twisting means, means fordelivering yarn to said twisting means, and means operable by the weightof the twisted strands for stopping said twisting means.

16. A mop swab machine comprising a pair of spaced apart strand twistingmembers, operating means for said twisting members, means disposedbetween said members for supporting the twisted strands, and means fordelivering the strands to said supporting means.

17. A mop swab, machine comprising a pair of spaced apart strandtwisting members, operating means for said twisting members, meansdisposed between said members for supporting the twisted strands, meansfor delivering the strands to said supporting means, and means connectedto said operating means and said supporting means for stopping saidoperating means when a predetermined quantity of yarn is deposited onsaid supporting means.

ELMER A. MASON.

